[Add google fonts] Add Google fonts to the theme support #enfold

avf_google_heading_font.php

<?php

add_filter( 'avf_google_heading_font', 'avia_add_heading_font');
function avia_add_heading_font($fonts) {
  $fonts['PT Sans Narrow'] = 'PT Sans Narrow:400,700';
  $fonts['PT Sans'] = 'PT Sans:400,700,400italic,700italic';
  return $fonts;
}
add_filter( 'avf_google_content_font', 'avia_add_content_font');
function avia_add_content_font($fonts) {
  $fonts['PT Sans'] = 'PT Sans:400,700,400italic,700italic';
  $fonts['PT Sans Narrow'] = 'PT Sans Narrow:400,700';
  return $fonts;
}